328903500 has 96 divisors (see below), whose sum is σ = 990924480. Its totient is φ = 84672000.

The previous prime is 328903493. The next prime is 328903507. The reversal of 328903500 is 5309823.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (328903493) and next prime (328903507).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (328903507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39720 + ... + 47280.

It is an arithmetic number, because the mean of its divisors is an integer number (10322130).

Almost surely, 2^328903500 is an apocalyptic number.

328903500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328903500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (495462240).

328903500 is an abundant number, since it is smaller than the sum of its proper divisors (662020980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

328903500 is a wasteful number, since it uses less digits than its factorization.

328903500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7612 (or 7600 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 328903500 is about 18135.6968435183. The cubic root of 328903500 is about 690.2760919901.

The spelling of 328903500 in words is "three hundred twenty-eight million, nine hundred three thousand, five hundred".